News Archive

Sea Ice Concentration Fields for Operational Ice Forecasting

6 April 2015

NSIDC announces availability of the MASIE-AMSR2 (MASAM2) daily 4 km sea ice concentration, which is a prototype concentration product offering greater accuracy and higher resolution in ice concentration fields used to initialize an operational sea ice forecast model. MASAM2 is a blend of two other daily sea ice data products: ice coverage from the Multisensor Analyzed Sea Ice Extent (MASIE) product, at a 4 km grid cell size, and ice concentrations from the Advanced Microwave Scanning Radiometer 2 (AMSR2) at a 10 km grid cell size. This prototype MASAM2 product currently covers July 2012 through mid-November 2014, but it will become a daily product if there is demand for such a product.

Sea Ice for Walrus Outlook Released

3 April 2015
Sea Ice for Walrus Outlook

The 2015 Sea Ice for Walrus Outlook (SIWO) is in full swing! Reports will be released each Friday from now until the end of the summer ice season.

SIWO is a collaboration between weather and ice forecasters, climate scientists and sea-ice researchers, and Alaska Native sea-ice experts. It focuses on the ice conditions in the northern Bering and southern Chukchi Seas, and produces weekly reports on ice and weather conditions for Alaska Native subsistence hunters, coastal communities, and anyone interested in sea ice and walrus.

Call for Nominations

26 March 2015
Ice formations at the foot of Russell Glacier. Kangerlussuaq, Greenland.

ARCUS seeks nominations for the Organizing Committee of the Arctic Observing Open Science Meeting that will convene for 2.5 days during the week of 16 November 2015 in Seattle, Washington. The conference will bring together individuals and teams involved in the collection, processing, analysis, and use of observations in the Arctic. Submission deadline: Friday, 27 March 2015.

SIPN Leadership Team Member Provides Testimony to U.S. Senate Committee

20 March 2015

On Thursday, 5 March 2015 Cecilia Bitz provided the U.S. Senate Energy and Natural Resources Committee with testimony about Arctic research opportunities. Her comments featured the Sea Ice Prediction Network (SIPN) as an example of exciting new work that could deliver even more relevant information to policy makers with further investments. Her comments are recorded from 1:26 to 1:31 in the archived video.

Webinar Archive Available

6 March 2015

The archive is now available for the Sea Ice Prediction Network (SIPN) webinar on "Sea Ice Modeling: Characteristics and Processes Critical for the Radiation Budget," presented by Elizabeth Hunke, Los Alamos National Laboratory. The archive includes video of the webinar, the presentation slides, and a list of webinar participants.

Webinar Reminder

3 March 2015

Reminder: Webinar today, Tuesday, 3 March 2015, from 10:00 a.m. to 11:00 a.m. AKST. on "Sea Ice Modeling: Characteristics and Processes Critical for the Radiation Budget." The speaker is Elizabeth Hunke, Los Alamos National Laboratory. This webinar is designed for the sea ice research community and others interested in learning about sea ice modeling from the global climate model perspective.

Witness the Arctic

27 February 2015
Witness the Arctic Volume 19 Number 1

The Winter 2015 issue of Witness the Arctic is now published online. We are pleased with our new graphic-friendly format for email delivery of the newsletter. This issue includes information about the SEARCH program and related activities, Arctic Research Support and Logistics program updates, news from ACADIS, information related to an Executive Order to coordinate Arctic-related activities, new communication and collaboration tools from IARPC, an overview of NOAA's 2014 Arctic Report Card, updates on upcoming international meetings (ICARP III and ASSW 2016), and a profile of ARCUS board member Mark Ivey.

SEARCH Committee Nominations

24 February 2015
SEARCH Committee Nominations

The Study of Environmental Arctic Change (SEARCH) seeks nominations of candidates for the SEARCH Science Steering Committee (SSC) that are broad and cross-disciplinary thinkers, good communicators and consensus-builders, and have a strong commitment to the SEARCH vision. While we welcome nominations from all disciplines and research backgrounds, to complement existing strengths we are particularly interested in members with expertise in the social sciences (including economics), human dimensions, science-policy linkages, and those with expertise in partnering with stakeholders outside the academic and US federal scientific communities. Nominations are due Monday, 9 March.

ICARP III Webinar Archive

19 February 2015
ICARP III: Integrating Arctic Research: a Roadmap for the Future

A complete archive of the webinar on "International Conference on Arctic Research Planning (ICARP) III: Integrating Arctic Research—A Roadmap for the Future,” with presentations from Volker Rachold (Executive Secretary, International Arctic Science Committee) and Larry Hinzman (Director, International Arctic Research Center), is now available. Archived files include the presentation as a PDF, the participant list, and audio and video recordings.

Sea Ice Prediction Network (SIPN) Webinar

19 February 2015
Sun bounces off of the sea ice on a clear sunny day in the Arctic. Aboard the USCGC Polar Sea icebreaker in the Beaufort Sea.

Registration is now available for a SIPN webinar entitled "Sea Ice Modeling: Characteristics and Processes Critical for the Radiation Budget." The speaker is Elizabeth Hunke, Los Alamos National Laboratory. This webinar is designed for the sea ice research community and others interested in learning about sea ice modeling from the global climate model perspective. It is scheduled for Tuesday, 3 March 2015 from 10:00 a.m. to 11:00 a.m. AKST. For more information, contact Betsy Turner-Bogren at ARCUS (betsy [at]

PCPI Sea Ice Prediction Workshop

10 February 2015
Photo by Ute Kaden (TREC 2005), Courtesy of ARCUS

The Polar Climate Predictability Initiative (PCPI) announces a call for abstracts and registration for the Sea Ice Prediction Workshop 2015. This workshop will discuss polar climate variability and predictability on seasonal to decadal timescales. Presentations on understanding the causes of of inter-annual polar climate variability, as well as idealised predictability studies, and operational forecasts are welcome. The workshop will convene 8-10 April 2015 at the University of Reading, United Kingdom. For more information contact Ed Hawkins (e.hawkins [at]

ARCUS Informational Webinar

10 February 2015
ICARP III: Integrating Arctic Research: a Roadmap for the Future

ICARP III: Integrating Arctic Research: a Roadmap for the Future
Wednesday, 18 February 2015 at 8:00 a.m. AKST

The International Conference on Arctic Research Planning (ICARP) III aims at engaging all partners in shaping the future of Arctic research needs. The goal of the webinar is to provide information on ICARP III organization and activities.

SEARCH Job Openings

29 January 2015

This is a great time for experienced professionals interested in the Arctic! The Study of Environmental Arctic Change (SEARCH) has been awarded a grant from the National Science Foundation Division of Polar Programs' Arctic Sciences Section. This grant will support a new structure and suite of activities, including new positions of SEARCH Executive Director, a Project Manager, and a Communicator/Facilitator.

PolarTREC Update

15 January 2015
Yamini Bala is with her team in Antarctica to study ice crystals and how their structure effects the flow of the West Antarctic Ice Sheet!

The PolarTREC team begins 2015 with two teachers' deployments in Antarctica as well as upcoming meetings on teacher-researcher partnerships and polar STEM education workshops with the National Science Teachers Association. Keep up with expeditions and events that connect students and the public to polar science at

Sea Ice Outlook Post-Season Report

19 December 2014
Box plots show the median, interquartile range, highest, and lowest values of sea ice outlook contributions from June, July, and August, broken down by type of method used.

The Sea Ice Prediction Network (SIPN) announces the 2014 Sea Ice Outlook (SIO) Post-Season Report! The SIO provides an open forum for researchers and others to share and discuss predictions of Arctic sea ice through monthly reports in the summer and a post-season analysis. The post-season report includes analysis of the relative skill of various Arctic sea ice prediction models and methods and an expanded focus this year on the spatial pattern, probability, and ice-free dates for specific regions.

Witness the Arctic

12 December 2014
Witness the Arctic Volume 18 Number 3

The Fall 2014 issue of Witness the Arctic is now available. This issue includes information about the new SEARCH program structure and program updates; news of NSF-funded projects in Arctic natural sciences, social sciences, science education, and Polar Cyberinfrastructure; a perspective on recommendations from the Arctic Biodiversity Assessment; updates from ACADIS and USARC; profiles of two ARCUS board members; and a welcome to the five new members of the ARCUS Board of Directors.

SEARCH Town Hall at AGU

9 December 2014
SEARCH Town Hall at AGU

A Town Hall on the Study of Environmental Arctic Change (SEARCH) will be held at the AGU Fall meeting in San Francisco. The Town Hall is scheduled for Monday, 15 December 2014 at 12:30-1:30 PM PST in Moscone West, Room 2005. Members of the Arctic science, education, and policy communities are invited to attend. We encourage students and early career investigators to participate. Light refreshments will be provided.

SIPN Modeling Meeting

4 December 2014
 Distribution of individual Pan-Arctic Outlook values (August Report) for September 2014 sea ice extent compared to the observed value. Labels on the bar graph are rounded to the tenths for readability.

There will be a Sea Ice Prediction Network (SIPN) Modeling Meeting on Wednesday, 17 December from 12:30-2:00 pm during the American Geophysical Union (AGU) fall meetings. This year's meeting will focus on issues related to predicting sea ice with methods that are sensitive to initial conditions. Specifically, the goal of this meeting is to set up a common protocol for experiments to test sensitivity to initial conditions in sea ice forecasts of summer 2015. We will also discuss metrics that are responsive to stakeholder needs. The meeting is open, and all SIPN and Sea Ice Outlook participants who use initial conditions in a model are invited. The meeting will convene in the Foothill E room on the 2nd floor of the San Francisco Marriott Marquis.

Lunch will be provided to folks who RSVP by 10:00 am (AKST) Monday, 8 December. For more information or to RSVP, contact Betsy (betsy [at]

Request for Input

25 November 2014
This image compares differences in ice-covered areas between September 17, 2014, the date of this year’s minimum, and last year’s minimum, September 13, 2013.

Request for Input: Draft Post-Season Report. The 2014 Sea Ice Outlook (SIO) Action Team invites community comment on its draft post-season report. This draft includes the main post-season analysis and discussion points. Following input, further development, and editing the SIO Action Team aims to share a final draft with the larger community during the 2014 American Geophysical Union Fall Meetings 14-19 December. Comments from the Arctic sea ice community on the analysis and discussion sections as well as suggestions on how to help improve sea-ice forecasts are welcome. Please send comments to Betsy Turner-Bogren (betsy [at] by Wednesday, 3 December 2014. The report is online and available to be downloaded as a PDF or Microsoft Word document here.

Sea Ice Presentations at AGU

16 November 2014
Sea Ice Presentations at AGU

Going to the AGU Fall Meeting in San Francisco next month? Overwhelmed by the science program and not sure what presentations to see? We’ve got an online schedule of sea ice-related talks and posters to help!